Optimisation of Support Design for Muddy Soft Rock Roadways
In order to solve the problems of roofing and the increase of two gangs approaching which are faced by the support of soft rock roadway by using traditional U-type steel bracket,on the basis of the analysis of the basic geological conditions of the 1201 working face,the reasons why the support of traditional U-type steel bracket is not in place are analysed,and the concepts of adopting the pipe shed for the over-supporting and grouting for the reinforcement of support are put forward,and the effect of the optimization is comprehensively evaluated,and the ideal optimization effect is obtained.The optimised effect is evaluated comprehensively and the ideal effect is obtained.
soft rock tunnelU-shaped steel supportpipe shedgrouting reinforcementperimeter rock control
NETL
NSTL
万方数据
维普
